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Cirrus SR20 Maintenance Manual
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Cirrus SR20 Maintenance Manual

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Download this manual See also: Pilot Operating Handbook, Maintenance Manual
C I R R U S
A I R P L A N E M A I N T E N A N C E M A N U A L
1. DESCRIPTION
The brake system consists of single disc brake assembly on each main landing gear wheel, master cylin-
der for each rudder pedal, hydraulic fluid reservoir, parking brake, and associated hydraulic plumbing.
Serials 1593 & subs, 1005 thru 1592 after SB2X-32-14: A brake temperature indicator is installed on each
brake caliper piston housing. The indicator turns black if overheating occurs.
Serials 2016 & subs w/ Perspective Avionics: A brake temperature sensor is installed on each brake
assembly. Brake temperature annunciations are displayed on the MFD. A caution annunciation occurs
when brake temperature is between 270°F (132°C) and 293° F (145°C). A warning annunciation occurs
when brake temperature exceeds 293°F (145°C). 28 VDC is supplied through the ENG INST circuit
breaker on the Main Bus 2.
The hydraulically operated brakes are individually activated by floor mounted toe pedals located at both
pilot stations. The master cylinders are located forward of the pilot's rudder pedals. The hydraulic fluid res-
ervoir is located in the engine compartment on the upper RH side of the firewall.
Serials 1005 thru 2240 before SB2X-32-21: The reservoir is serviced with MIL-H-5606 hydraulic fluid.
Serials 1005 thru 2240 after SB2X-32-21, 2241 & subs: The reservoir is serviced with MIL-PRF-87257
hydraulic fluid.
For disassembly/assembly of brake master cylinder refer to the manufacturer's approved Instructions For
Continued Airworthiness.
A parking brake mechanism holds induced hydraulic pressure on the disc brakes for parking. The parking
brake system consists of a parking brake valve, control cable with knob, and associated hydraulic plumb-
ing. The parking brake valve is mounted adjacent to the firewall on the LH side of the outboard console rib.
Serials 1005 thru 2015, 2016 & subs w/o Perspective Avionics: The parking brake control cable knob is
mounted to the LH side of the mid console, adjacent to the alternate air controls.
Serials 2016 & subs w/ Perspective Avionics: The parking brake control cable handle is mounted to the LH
kick plate. A position sensor, mounted adjacent to the parking brake valve actuation arm, sends position
data to the MFD via the GEA 71 engine airframe unit. An alert indicates in the CAS window of the MFD
when the parking brake is engaged.
EFFECTIVITY:
All
BRAKES
M O D E L S R 2 0
32-42
Page 1
15 Dec 2014

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Summary of Contents for Cirrus SR20

  • Page 1 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 BRAKES 1.

  • Page 2: Troubleshooting

    C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 2.
  • Page 3 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Trouble Probable Cause Remedy...
  • Page 4 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Trouble Probable Cause Remedy...
  • Page 5 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Trouble Probable Cause Remedy...

  • Page 6: Maintenance Practices

    C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 3.
  • Page 7 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Description P/N or Spec.
  • Page 8 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Carefully slide anchor bolts secured to cylinder assembly into torque plate bushings.
  • Page 9 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 C.
  • Page 10 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 CAUTION: Do not use basic or acidic cleaning agents on wheel halves.
  • Page 11 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 CAUTION: If piston does not slide into cylinder bores with pressure of only one or two fingers, it is sticking which can lead to brake damage and overheating.
  • Page 12 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Inspection/Check - Brake Assembly Visually inspect brake cylinder and back plate for cracks, nicks, corrosion, or other dam- age.
  • Page 13 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 D.
  • Page 14 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Install pressure plate with new lining(s) facing away from piston(s) by sliding over anchor bolts.
  • Page 15 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 E.
  • Page 16 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Push pistons back by hand.
  • Page 17 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 F.
  • Page 18 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Serials 1005 thru 1592 after SB 2X-32-14, Serials 1593 thru 1600.
  • Page 19 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 LEGEND 1.

  • Page 20: Brake Line

    C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 BRAKE LINE (REF) LEGEND...
  • Page 21 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 G.

  • Page 22: Brake Assembly

    C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 MAIN LANDING GEAR STRUT (REF)
  • Page 23 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 MAIN LANDING GEAR STRUT (REF)
  • Page 24 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 H.
  • Page 25 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Do not cut or gouge strut laminate when removing epoxy.
  • Page 26 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Bleed brake system.
  • Page 27 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 GROUNDING STRAP UPPER...
  • Page 28 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Strut Assembly Brake Line - Serials 1886 &...
  • Page 29 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 CAUTION: Do not use power tools to remove epoxy.
  • Page 30 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 6.0 inches (15.2 cm) UPPER...
  • Page 31 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 J.
  • Page 32 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 K.
  • Page 33 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 L.
  • Page 34 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Place parking brake valve actuation arm in OFF position.
  • Page 35 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Serials 2438 &...
  • Page 36 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 FLOOR FWD (REF) LEGEND...
  • Page 37 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 DETAIL BATTERY BRACKET...
  • Page 38 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 BATTERY BRACKET (REF) FLOOR FWD...
  • Page 39 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 DETAIL DETAIL BATTERY...
  • Page 40 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 LH INBOARD CONSOLE RIB (REF)
  • Page 41 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 LH INBOARD CONSOLE RIB (REF)
  • Page 42 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 PARKING BRAKE CABLE BRACKET (REF)
  • Page 43 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 PARKING BRAKE CABLE BRACKET (REF)

  • Page 44: Main Landing Gear

    C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 4 12 Serials 1005 thru 1600 before SB 2X-32-13.
  • Page 45 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 MAIN LANDING GEAR (REF)
  • Page 46 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 MAIN LANDING GEAR (REF)
  • Page 47 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 MAIN LANDING GEAR (REF)
  • Page 48 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 M.
  • Page 49 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Remove overflow tubing from brake fluid reservoir.
  • Page 50 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 BRAKE ASSEMBLY (REF) LEGEND 1.
  • Page 51 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 N.
  • Page 52 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 Close feed valve.
  • Page 53 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 (ag) Use syringe to remove approximately 0.24 oz (7 ml) of hydraulic fluid from brake fluid res- ervoir to prevent overflow.
  • Page 54 C I R R U S A I R P L A N E M A I N T E N A N C E M A N U A L M O D E L S R 2 0 BRAKE ASSEMBLY (REF) LEGEND 1.